smbc.rb

# -*- coding: utf-8 -*-
#This code gets all the comic strips from the webcomic
#Saturday Morning Breakfast Cereal (SMBC) and downloads them to a local folder
#Tobias Rusås Olsen (& Bjørn Arild Mæland) - © 2008.

require 'date'
require 'net/http'

STARTDATE = "2008-08-20"
TARGETDIR = "bilder/"

#Lets make some dates
(Date.parse(STARTDATE) .. Date.today).each { |date|

  #Lets create the url to catch the picture
  Net::HTTP.start("www.smbc-comics.com") { |http|
    resp = http.get("/comics/" + date.strftime("%Y%m%d") + ".gif")
    next if resp.body.size == 301 # No comic for this day, file not found
    #Lets create local name for picture
    this = date.strftime("%Y%m%d") + ".gif"

    #Create file and write result.
    open(TARGETDIR + this, "wb") { |file|
      file.write(resp.body)
    }
  }
}